. "The grant proposal is a continuation of the project 'Communication of Social Insects: Study of Chemical Signals of Bumblebees' that was supporteds by the Grant Agency of the Czech Republic during 1995-1997. We propose to study several types of signals useds by the individual casts of a bumblebee colony for the communication. We will continue the study of marking pheromones of bumblebee males and we will widen our research to sex pheromones of females. Mandibular gland of egg-laying queens is, accordinto the literature, a source of queen's pheromone, inhibiting the ovarian development in workers. Secretion of this gland will be analysed, its components identified and the composition will be compared to that of virgin females to see the differences in compounds that may be the active ones. Biological test in laboratory colonies will follow the analysis. Furthermore, we intend to analyse the Dufour's gland secretion of workers that forms a characteristic odour of a bumblebee nest and marks a trail to t"@en . "0"^^ . . . "1"^^ . . "N\u00E1vrh navazuje na projekt 'Komunikace soci\u00E1ln\u00EDho hmyzu, studium chemick\u00FDch sign\u00E1l\u016F \u010Dmel\u00E1k\u016F', podporovan\u00FD GA\u010CR v letech 1995-1997. Podstatou n\u00E1vrhu je v\u00FDzkum n\u011Bkolika typ\u016F sign\u00E1l\u016F, jimi\u017E komunikuj\u00ED p\u0159\u00EDslu\u0161n\u00EDci jednotliv\u00FDch kast kolonie \u010Dmel\u00E1k\u016F. Budeme pokra\u010Dovat ve studiu zna\u010Dkovac\u00EDch feromon\u016F \u010Dmel\u00E1\u010D\u00EDch samc\u016F a v\u00FDzkum roz\u0161\u00ED\u0159\u00EDme i na sexu\u00E1ln\u00ED feromony sami\u010Dek. Mandibul\u00E1rn\u00ED \u017El\u00E1za kr\u00E1loven ve st\u00E1diu kladen\u00ED vaj\u00ED\u010Dek je podle literatury zdrojem mate\u0159\u00ED tlum\u00EDc\u00ED l\u00E1tky, br\u00E1n\u00EDc\u00ED rozvoji ovari\u00ED u d\u011Blnic. Sekret t\u00E9to \u017El\u00E1zy bude analyzov\u00E1n, jeho slo\u017Eky identifikov\u00E1ny a slo\u017Een\u00ED sekretu bude porovn\u00E1no se sekretem panensk\u00E9 sami\u010Dky za \u00FA\u010Delem zji\u0161t\u011Bn\u00ED rozd\u00EDln\u00FDch slo\u017Eek a vytipov\u00E1n\u00ED aktivn\u00EDch l\u00E1tek. Anal\u00FDza bude n\u00E1sledov\u00E1na biologick\u00FDm testem v laboratorn\u00EDch koloni\u00EDch.D\u00E1le budou analyzov\u00E1ny sekrety Dufourovy \u017El\u00E1zy d\u011Blnic, kter\u00E9 vytv\u00E1\u0159ej\u00ED charakteristickou v\u016Fni hn\u00EDzda a slou\u017E\u00ED i k ozna\u010Den\u00ED stezek uvnit\u0159 kolonie. Budou porovn\u00E1ny sekrety r\u016Fzn\u00FDch druh\u016F i r\u016Fzn\u00FDch koloni\u00ED t\u00E9ho\u017E druhu. Z\u00EDskan\u00E9 analytick\u00E9 v\u00FDsledky budou stati" . . . . . . . "0"^^ . "Chemical signals of bumblebees: identification of components, their biological activity and biosynthesis"@en . . . . . "http://www.isvav.cz/projectDetail.do?rowId=GA203/98/0453"^^ . . "11"^^ . "GA203/98/0453" . "Tento t\u0159\u00EDlet\u00FD projekt, zam\u011B\u0159en\u00FD na studium sekretu labi\u00E1ln\u00ED \u017El\u00E1zy r\u016Fzn\u00FDch druh\u016F \u010Dmel\u00E1k\u016F, p\u0159inesl \u0159adu velmi pozoruhodn\u00FDch v\u00FDsledk\u016F, nap\u0159. identifikaci 60 obsahov\u00FDch l\u00E1tek. Tyto v\u00FDsledky roz\u0161\u00ED\u0159ily dosavadn\u00ED v\u011Bdomosti o komunikaci i chov\u00E1n\u00ED \u010Dmel\u00E1k\u016F. V\u00FDstup"@cs . "11"^^ . . "Chemick\u00E9 sign\u00E1ly ovliv\u0148uj\u00EDc\u00ED chov\u00E1n\u00ED \u010Dmel\u00E1k\u016F; identifikace slo\u017Eek, jejich biologick\u00E1 aktivita a biosynt\u00E9za" .